Support stand



FIG. 1 is a view in perspective of a support stand showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a side elevational view opposite to that shown in FIG. 4;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing on FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a support stand, as shown and described. 